Inside a Puroxi Nano Bubble System

This lesson follows the complete system from the water intake to the treated-water return. Each component has a distinct job, and successful operation depends on their relationship.

Learning objectives

• Identify the main components of a Puroxi nozzle loop.
• Explain why the pump is selected from a duty point.
• Distinguish gas delivery from liquid chemical dosing.
• Recognize correct intake, discharge and monitoring considerations.
• Describe the basic commissioning sequence.

1. Intake and screening

The intake draws representative water while protecting the pump and nozzle from debris. A submersible pump should be secured, screened as appropriate and positioned to avoid drawing sediment directly from the bottom. Materials must be compatible with fresh, brackish or seawater service.

2. Pump and hydraulic duty

The pump must deliver the total flow required by all operating nozzles at the complete system head. Static lift, pipe friction, fittings, valves, filters and nozzle operating pressure all contribute. A VFD may support controlled commissioning where compatible with the pump and design.

3. Puroxi MNB nozzle

Water enters one end and treated water exits the opposite end. The selected gas reaches every supplied port. Nozzle size, material and connections are chosen for flow, pressure, chemistry and installation standards.

4. Gas delivery

Gas may come from ambient air, a Puroxi Oxygen Generator, an appropriate ozone source or another approved source. Flowmeters, regulators, compatible tubing and external serviceable check valves are selected where required. The gas source must never be assumed from water volume alone.

5. Optional upstream liquid dosing

When hydrogen peroxide or another compatible liquid is selected, a peristaltic or metering pump introduces it upstream into the moving water. The nozzle’s intense mixing can help distribute the dosed liquid through the treatment flow. Liquid dosing remains separate from gas-port delivery.

6. Return and distribution

The outlet returns treated water to the application. The design should avoid short-circuiting directly back to the intake and should support the intended circulation and turnover. Multidirectional manifolds may be used when the site requires broader distribution.

Commissioning checklist

1. Confirm equipment, voltage, frequency, materials and connections.
2. Inspect intake, supports, piping, valves, filters and gas tubing.
3. Confirm the pump curve and preliminary duty point.
4. Start gas supply as directed and confirm delivery to every port.
5. Start the pump and verify flow and pressure.
6. Inspect for leaks, abnormal vibration and restricted flow.
7. Record baseline water conditions and operating values.
8. Photograph the completed installation and establish the cleaning schedule.

Knowledge check

1. Why is motor horsepower alone insufficient for pump selection?
2. Where is hydrogen peroxide introduced?
3. Why should intake and outlet placement be separated?
4. What values should be recorded during commissioning?

ANSWERS

1) The pump must meet flow at total dynamic head.
2) Upstream through suitable liquid-dosing equipment—not a gas port.
3) To reduce short-circuiting and improve distribution.
4) Flow, pressure, gas delivery, water baseline and equipment condition.

PUROXI PRINCIPLE

Understanding Always Comes Before Recommendation.